Criminal barristers Jeremy Dein and Sasha Wass scrutinise the case of John Dickman, who, after being convicted of murder in 1910, became the last man to be hanged at Newcastle Prison.

On Friday 18 March 1910, 46 year-old John Nisbet boarded a 10.27am train from Newcastle Central Station. By the time the train reached the end of the line, he was dead.

He had been shot five times: his bag, containing £370 in cash, had been stolen, and his body stuffed beneath the carriage seats. Local bookmaker John Dickman was convicted of his murder and sentenced to death, but he always protested his innocence. Now, more than 100 years later, his great grandson Rowan is on a mission to find out the truth.

As Rowan delves into his family history and retraces the steps his great grandfather took on that fateful day, Sasha and Jeremy work together to try to determine whether Dickman may have been the victim of a miscarriage of justice.

Sasha Wass and Jeremy Dein re-examine a seaside case of murder and mistaken identity from 1900, in a case involving false names, suspicious journeys and 100-year-old evidence. Great Yarmouth, September 1900 - a woman's body is found among the sand dunes. She had been murdered. The first mystery facing police was not identifying the killer but the woman herself - she had been staying in Great Yarmouth under an assumed name. A clue from her clothing allowed the police to name her as Mary Jane Bennett, and suspicion immediately landed on her estranged husband, Herbert Bennett. Now, over 100 years later, Herbert's great-grandson Paul is investigating the case, and he has doubts about his ancestor's guilt. Can a modern investigation shed new light on the evidence that was used to convict Herbert for murder? Sasha and Jeremy receive a breakthrough in the form of crucial physical evidence from the original investigation. Could this be the key to unlocking this mysterious case?